Opto ramp 3 switch board
New 3 opto PCB (also referred to as a ramp opto board) used on many Williams WPC pinball machines.
The new design has a number of improvement from the factory original:
- Status LEDs give full diagnostics of each transmitter and receiver!
- Lower current consumption and less heat, for longer life.
- User serviceable with transistors that are replaceable with thru-hole equivalents.
This opto ramp switch board assembly is a substitute for the following part numbers:
- 5768-12686-00 pcb
- 5010-12733-00 (3) res 220ohm 1w 5%
- 5040-12298-00 (1) cap 100M 40V-10+50 axial
- 5370-12272-00 (1) ic LM339 quad comp
- 5791-12273-04 (1) 4h str sq lck .156
- 5791-12273-05 (2) 5h str sq lk .156
- 5791-12273-07 (1) 7h str sq lck .156